Method drawFullScreenStencil

Source/Node/ClipNode.cpp:106–138

}

void ClipNode::drawFullScreenStencil(uint8_t maskLayer, bool value) {
	SharedRendererManager.flush();
	bgfx::TransientVertexBuffer vertexBuffer;
	bgfx::TransientIndexBuffer indexBuffer;
	if (bgfx::allocTransientBuffers(&vertexBuffer, PosColorVertex::ms_layout, 4, &indexBuffer, 6)) {
		Size viewSize = SharedView.getSize();
		float width = viewSize.width;
		float height = viewSize.height;
		Vec4 pos[4] = {
			{0, height, 0, 1},
			{width, height, 0, 1},
			{0, 0, 0, 1},
			{width, 0, 0, 1}};
		PosColorVertex* vertices = r_cast<PosColorVertex*>(vertexBuffer.data);
		Matrix ortho;
		bx::mtxOrtho(ortho.m, 0, width, 0, height, 0, 1000.0f, 0, bgfx::getCaps()->homogeneousDepth);
		for (int i = 0; i < 4; i++) {
			Matrix::mulVec4(&vertices[i].x, ortho, pos[i]);
		}
		const uint16_t indices[] = {0, 1, 2, 1, 3, 2};
		std::memcpy(indexBuffer.data, indices, sizeof(indices[0]) * 6);
		uint32_t func = BGFX_STENCIL_TEST_NEVER | BGFX_STENCIL_FUNC_REF(maskLayer) | BGFX_STENCIL_FUNC_RMASK(maskLayer);
		uint32_t fail = value ? BGFX_STENCIL_OP_FAIL_S_REPLACE : BGFX_STENCIL_OP_FAIL_S_ZERO;
		uint32_t op = fail | BGFX_STENCIL_OP_FAIL_Z_KEEP | BGFX_STENCIL_OP_PASS_Z_KEEP;
		uint32_t stencil = func | op;
		bgfx::setStencil(stencil);
		bgfx::setVertexBuffer(0, &vertexBuffer);
		bgfx::setIndexBuffer(&indexBuffer);
		bgfx::setState(BGFX_STATE_NONE);
		bgfx::ViewId viewId = SharedView.getId();
		bgfx::submit(viewId, SharedLineRenderer.getDefaultPass()->apply());
	}
}

void ClipNode::drawStencil(uint8_t maskLayer, bool value) {
	uint32_t func = BGFX_STENCIL_TEST_NEVER | BGFX_STENCIL_FUNC_REF(maskLayer) | BGFX_STENCIL_FUNC_RMASK(maskLayer);